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Mary Merrill — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Middlesex, Massachusetts
Our Model Tree links this Mary Merrill across the 1930 and 1940 US Censuses in Middlesex, Massachusetts (XGBoost, ~Confirmed) — first a spouse (b.~1866), then head of a 7-person household.
Age 64
b. ~1866
Female
Spouse
Born: Canada
Married
1930 Census Record Details
| Census Year | 1930 |
| Location | Middlesex, Massachusetts |
| Surname | Merrill |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 64 |
| Marital Status | Married |
| Birthplace | Canada |
| Age at First Marriage | 23 |
| Father's Birthplace | Canada |
| Mother's Birthplace | Canada |
| Additional Details | |
| Can Read/Write | Yes |
| Birth Country | Canada |
| Birthplace (normalized) | canada |
| Township / Ward | Lowell |
| Est. Birth Year | ~1866 |
Household Members
Census records only state relationship to the household head.
Pairwise kinship is derived (~90–95% accurate), not recorded.
Step/blended families and boarders can break it.
7 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Edith Merrill | Daughter | — | 17 | ~1913 |
| Alice Merrill | Daughter | — | 13 | ~1917 |
| Adeline Merrill | Daughter | — | 15 | ~1915 |
| Isaac Merrill | Head | — | 66 | ~1864 |
| Richard Merrill | Son | — | 11 | ~1919 |
| Mary Merrill | Spouse | — | 64 | ~1866 |
| Arthur Merrill | Son | — | 19 | ~1911 |
Census Appearances
1930
Middlesex, Massachusetts
Spouse, age 64
Middlesex, Massachusetts · implied b. ~1866 — 7 household members
| Surname | Merrill |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 64 |
| Marital Status | Married |
| Birthplace | Canada |
| Age at First Marriage | 23 |
| Father's Birthplace | Canada |
| Mother's Birthplace | Canada |
| Can Read/Write | Yes |
| Birth Country | Canada |
| Birthplace (normalized) | canada |
1940
Middlesex-County, Massachusetts
Spouse, age 74
Middlesex-County, Massachusetts · implied b. ~1866 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Merrill |
| Given Name | Marie |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 74 |
| Marital Status | Married |
| Birthplace | Canada |
| 1935 Residence (City) | Maynard |
| 1935 Residence (County) | Middlesex |
| Naturalization Status | Naturalized |
| Class of Worker | 0 |
| Hours Worked | 0 |
| Highest Grade | 4 |
| 1935 Residence | Same House |
| Birth Country | Canada |
| Birthplace (normalized) | canada |
Model Tree
An inferred pedigree reconstructed from census links — up to 4 generations within the 1900–1950 window. Closer generations are built from household co-residence; deeper ones are bridged by following a relative to their own childhood census. Confidence compounds and weakens with each generation.
Our Model Tree links Mary Merrill across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Merrill
Spouse · 1930 · age 64 · b. ~1866 · Massachusetts
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1930 US Federal Census — Middlesex, Massachusetts
Open full size
1930 US Federal Census — Middlesex, Massachusetts
Page Contents
50 people indexed on this census page (ia:1930:15thcensuspopula917unit:0788)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Michael Wight | 47 | Head | Foreman | Massachusetts |
| 2 | Julia M Wight | 47 | Wife | — | Massachusetts |
| 3 | Helena E Wight | 21 | Daughter | Clerk | Massachusetts |
| 4 | Joseph E Wight | 19 | Son | Clerk | Massachusetts |
| 5 | Catherine M Wight | 17 | Daughter | — | Massachusetts |
| 6 | Dorothy Wight | 15 | Daughter | — | Massachusetts |
| 7 | Alice Wight | 13 | Daughter | — | Massachusetts |
| 8 | Rita Wight | 9 | Daughter | — | Massachusetts |
| 9 | Arthur White | 47 | Head | Housekeeper | Massachusetts |
| 10 | Mary White | 43 | Wife | — | Massachusetts |
| 11 | William E White | 22 | Son | Laborer | Massachusetts |
| 12 | Lydia White | 20 | Daughter | Teacher | Massachusetts |
| 13 | Catherine F White | 18 | Daughter | Instructor | Massachusetts |
| 14 | Annie White | 15 | Daughter | — | Massachusetts |
| 15 | Edward White | 13 | Son | — | Massachusetts |
| 16 | Mildred M White | 11 | Daughter | — | Massachusetts |
| 17 | William Graham | 30 | Head | — | Norway |
| 18 | Hannah Graham | 30 | Wife | — | Norway |
| 19 | F. Francoville | 30 | Head | Laborer | Massachusetts |
| 20 | Adella P Francoville | 31 | Wife | — | Massachusetts |
| 21 | Francis J Francoville | 7 | Son | — | Massachusetts |
| 22 | Francis M Francoville | 6 | Son | — | Massachusetts |
| 23 | Robert L Francoville | 5 | Son | — | Massachusetts |
| 24 | Jeanette M Francoville | 3 | Daughter | — | Massachusetts |
| 25 | Joan M Francoville | 1 | Daughter | — | Massachusetts |
| 26 | James F St. George | 36 | Head | Mechanic | Massachusetts |
| 27 | Julia M St. George | 34 | Wife | — | Massachusetts |
| 28 | Frederick St. George | 12 | Son | — | Massachusetts |
| 29 | Robert J St. George | 11 | Son | — | Massachusetts |
| 30 | Richard W St. George | 10 | Son | — | Massachusetts |
| 31 | Dorothy M St. George | 8 | Daughter | — | Massachusetts |
| 32 | John P Deery | 37 | Head | Manager | Massachusetts |
| 33 | Alice V Deery | 37 | Wife | Clerk | Massachusetts |
| 34 | Mary E Anderson | 62 | Boarder | — | New York |
| 35 | Samuel J Conlin | 57 | Head | Laborer | Rhode Island |
| 36 | Mary A Conlin | 57 | Wife | — | Massachusetts |
| 37 | Alice M Conlin | 20 | Daughter | — | Massachusetts |
| 38 | Fred Malone | 31 | Head | Driver | Massachusetts |
| 39 | Josephine Malone | 31 | Wife | — | Rhode Island |
| 40 | Charles F Malone | 9 | Son | — | Massachusetts |
| 41 | Shirley A Malone | 7 | Daughter | — | Massachusetts |
| 42 | Charles Malone | 5 | Son | — | Massachusetts |
| 43 | Alice Burns | 64 | Head | Saleswoman | England |
| 44 | Isaac Merrill | 66 | Head | Carpenter | Maine |
| 45 | Mary Merrill THIS PERSON | 64 | Wife | — | Canada |
| 46 | Arthur Merrill | 19 | Son | — | Maine |
| 47 | Edith M Merrill | 17 | Daughter | — | Maine |
| 48 | Adeline M Merrill | 15 | Daughter | — | Maine |
| 49 | Alice M Merrill | 13 | Daughter | — | Maine |
| 50 | Richard Merrill | 11 | Son | — | Maine |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1930 United States Federal Census (NARA). Our Model Tree links this person across census decades using XGBoost-based record linkage, with per-link confidence scores. Household corroboration strengthens the signal when co-residents appear on the same census pages in multiple years.
Source: National Archives and Records Administration (NARA)